CN207248341U - A kind of trap setting for gathering transplanter vibration signal - Google Patents
A kind of trap setting for gathering transplanter vibration signal Download PDFInfo
- Publication number
- CN207248341U CN207248341U CN201721242977.XU CN201721242977U CN207248341U CN 207248341 U CN207248341 U CN 207248341U CN 201721242977 U CN201721242977 U CN 201721242977U CN 207248341 U CN207248341 U CN 207248341U
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- China
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- transplanter
- housing
- base
- vibration signal
- vibration
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Abstract
A kind of trap setting for gathering transplanter vibration signal, including base, base top is provided with housing, base bottom is provided with connector, light spring is supported by protrusion, light spring top braces have vibrating reed, and case top is fixed with Amplitude amplification cylinder, PVDF sensor units are provided with Amplitude amplification cylinder.Mechanical oscillation signal is converted into the simple harmonic oscillation of spring by the utility model, medium is used as by the use of the indoor air of closed cavity, vibrational energy is passed into detection sensor, it is measured directly to solve the problems, such as that mechanical oscillation signal is difficult to, avoid the rigid accuracy vibrated the problems such as causing damage and the big measurement error of PVDF units, improve mechanical oscillation signal measurement that PVDF sensors directly contact machinery.
Description
Technical field
Detection technique field is the utility model is related to, is filled more particularly, to a kind of seizure for gathering transplanter vibration signal
Put.
Background technology
Country's pot seedling transplanter takes the vibration for throwing seedling manipulator to cause pot seedling under transplanting at a high speed operating condition at present
The problems such as damage and leakage seedling.In order to optimize seedling taking manipulator vibration problem, it is necessary to seedling taking manipulator in seedling taking with throwing seedling process
When vibration signal be detected, by the analysis to vibration signal so as to optimize seedling taking Robotic Manipulator Motion Trajectory, reduction takes throwing
The vibration of seedling action moment tool hand, improves taking for manipulator and throws seedling operation effectiveness, improve mechanization transplanting quality.But according to existing
Transplanter work present situation, vibration signal more difficult extraction when transplanter works, reason is directly to contact using pressure sensor
The destruction of vibration signal can be caused, is detected using galvanomagnetic-effect, although vibration source signal will not be destroyed, the difficult peace of detection device
Dress.This just needs to propose a kind of test device being easily installed, it is possible to achieve the means of measurement vibration indirectly, and measuring device
The attribute of source vibration signal cannot be destroyed.
Utility model content
The purpose of this utility model is that vibration signal is more difficult when transplanter works to solve existing transplanter work present situation
To extract, reason is directly to be contacted the destruction that can cause vibration signal using pressure sensor, is detected using galvanomagnetic-effect, although
Vibration source signal will not be destroyed, but the problem of detection device hardly possible installation, there is provided a kind of seizure dress for gathering transplanter vibration signal
Put.
To solve the deficiency of above-mentioned technical problem, used technical solution is the utility model：
A kind of trap setting for gathering transplanter vibration signal, including base and the housing of cylindrical structure, base top
Portion is provided with one section of protrusion, and housing is set on the outside of protrusion and is fixed on base, and base bottom is provided with for base to be consolidated
The connector on transplanter is scheduled in order to base as transplanter vibrates together, light spring and lightweight bullet are supported by protrusion
The center line of spring is overlapped with raised center line, and light spring top braces have the center line of vibrating reed and vibrating reed and lightweight bullet
The center line of spring overlaps, and case top is fixed with horn-like Amplitude amplification cylinder, Amplitude amplification cylinder be relatively large in diameter one end with
Housing connects, and the inner wall of inner walls and Amplitude amplification cylinder junction is in the same plane to avoid influencing vibration signal
Transmit, PVDF sensor units are installed, base is with transplanting machine vibration and passes through lightweight bullet on the miner diameter end of Amplitude amplification cylinder
Vibration signal is passed to vibrating reed by spring, vibrating reed by the air dielectric of enclosure interior and by width amplify cylinder collect collect after pass
PVDF sensor units are passed, the vibration signal of transplanter is converted to electric signal and exported by PVDF sensor units.
The connector is magnetic coupling.
The protrusion is cylindrical-shaped structure, and raised outside diameter is equal to housing inner diameter, and raised and housing directly passes through screw thread
The mode of cooperation links together.
The PVDF sensor units include PVDF thin film, noise filtering circuit, temperature-compensation circuit and signal output
Circuit.
Using a kind of method of the trap setting signal acquisition of collection transplanter vibration signal, including following step
Suddenly：
Step 1：Signal acquisition unit is installed in the mechanical oscillation structure for needing to detect by magnetic coupling, is adjusted
The noise filtering circuit of whole PVDF sensor units, carries out system initialization, signal school Z-operation；
Step 2：After device behind stable and school zero, start to detect vibration signal, vibration source by base by vibration signal according to
It is secondary to pass to light spring and vibrating reed, vibrating reed is done simple harmonic oscillation in closed cavity, vibration signal passes through Amplitude amplification
Cylinder, improves the amplitude of vibration signal in order to the detection of PVDF sensor units；
Step 3：PVDF sensor units detection signal forms electric signal by conversion, by electric signal transmission to computer
Processing reduction simple harmonic oscillation signal, draws mechanical oscillation frequencies, then draws mechanical oscillation intensity according to gain coefficient.
In the step 2, simple harmonic oscillation amplitude function can obtain by the conservation of energy：
Wherein,For vibrating reed end face diameter,For PVDF sensor end face diameters, l is taper slope surface
Highly, k is garden wave number, and h is the height of gas in vibrating reed upper chamber,RespectivelyThe displacement length of end face
Degree.
In the step three, gain operation coefficient can be obtained by equation below：
Wherein, for mechanical wave, spread speed, l are the height of Amplitude amplification cylinder to c in atmosphere, and f is vibration frequency
Rate,Represent gain coefficient.
The beneficial effects of the utility model are：Mechanical oscillation signal is converted into the simple harmonic oscillation of spring by the utility model,
By the use of the indoor air of closed cavity as medium, vibrational energy is passed into detection sensor, solves mechanical oscillation signal
Be difficult to problem measured directly, avoid PVDF sensors directly contact machinery rigidity vibration cause PVDF units damage and
The problems such as measurement error is big, improves the accuracy of mechanical oscillation signal measurement.The utility model stable structure, simple installation,
Measurement effect is accurate, is particularly well suited to measure as machinery of this kind of vibration signal of transplanter compared with rule.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the exploded perspective view of the utility model.
Diagram mark：1st, PVDF sensor units；2nd, Amplitude amplification cylinder；3rd, housing；4th, light spring；5th, base；6th, even
Fitting；7th, vibrating reed.
Embodiment
Shown in figure, embodiment is as follows：
A kind of trap setting for gathering transplanter vibration signal, including base 5 and the housing of cylindrical structure 3, base 5
Top is provided with one section of protrusion, and housing 3 is set on the outside of protrusion and is fixed on base 5, and 5 bottom of base, which is provided with, to be used for the bottom of
The connector 6 that seat 5 is fixed on transplanter is supported by light spring 4 in order to which base 6 is as transplanter vibrates together in protrusion
And the center line of light spring 4 is overlapped with raised center line, 4 top braces of light spring have in vibrating reed 7 and vibrating reed 7
Heart line is overlapped with the center line of light spring 4, and the top of housing 3 is fixed with horn-like Amplitude amplification cylinder 2, Amplitude amplification cylinder 2
The one end that is relatively large in diameter be connected with housing 3, and 3 inner wall of housing and the inner wall of 2 junction of Amplitude amplification cylinder are in the same plane
To avoid the transmission for influencing vibration signal, PVDF sensor units 1 are installed on the miner diameter end of Amplitude amplification cylinder 2, base 5 with
Vibration signal is simultaneously passed to vibrating reed 7 by transplanting machine vibration by light spring 4, and vibrating reed 7 is situated between by the air inside housing 3
Matter transmission and being collected by width amplification cylinder 2 passes to PVDF sensor units 1 after collecting, and PVDF sensor units 1 are by transplanter
Vibration signal is converted to electric signal and exports.
The connector 6 is magnetic coupling.
The protrusion is cylindrical-shaped structure, and raised outside diameter is equal to housing inner diameter, and raised and housing directly passes through screw thread
The mode of the cooperation base that links together is connected with housing by helicitic texture, and water is passed through at light spring lower face center
After flat processing, affixed with the center of circle of base end face, the upper surface center of light spring is affixed with vibrating reed, the purpose so installed
In order to ensure the accuracy of light spring vibration, the factors such as vibrating reed is contacted with housing and light spring tilts are avoided to cause to shake
The loss of dynamic source signal energy.
The PVDF sensor units 1 include PVDF thin film, noise filtering circuit, temperature-compensation circuit and signal output
The purpose of circuit, the noise filtering circuit is to reduce the noise caused by installation process causes vibrating reed slightly to shake,
Filtering out for noise can be test initialization, and signal school zero is prepared, and improve the accuracy of detection to vibrating source signal.
The temperature-compensation circuit can eliminate influence of the environment temperature to detection signal, reduce the appearance of temperature drift phenomenon.
Preferably, in order to reduce influence of the environmental factor to detection circuit, PVDF thin film, noise filtering circuit, temperature mends
Circuit is repaid, signal output apparatus is integrated into miniature circular cylinder, is arranged on Amplitude amplification cylinder by being layered the closed installation of isolation ward
Upper surface.
Using a kind of method of the trap setting signal acquisition of collection transplanter vibration signal, including following step
Suddenly：
Step 1：Signal acquisition unit is installed in the mechanical oscillation structure for needing to detect by magnetic coupling, is adjusted
The noise filtering circuit of whole PVDF sensor units, carries out system initialization, signal school Z-operation；
Step 2：After device behind stable and school zero, start to detect vibration signal, vibration source by base by vibration signal according to
It is secondary to pass to light spring and vibrating reed, vibrating reed is done simple harmonic oscillation in closed cavity, vibration signal passes through Amplitude amplification
Cylinder, improves the amplitude of vibration signal in order to the detection of PVDF sensor units；
Step 3：PVDF sensor units detection signal forms electric signal by conversion, by electric signal transmission to computer
Processing reduction simple harmonic oscillation signal, draws mechanical oscillation frequencies, then draws mechanical oscillation intensity according to gain coefficient.
In the step 2, simple harmonic oscillation amplitude function can obtain by the conservation of energy：
Wherein,For vibrating reed end face diameter,For PVDF sensor end face diameters, l is taper slope
Face height, k are garden wave number, and h is the height of gas in vibrating reed upper chamber,RespectivelyThe displacement of end face
Length.
In the step three, gain operation coefficient can be obtained by equation below：
Wherein, for mechanical wave, spread speed, l are the height of Amplitude amplification cylinder to c in atmosphere, and f is vibration frequency
Rate,Represent gain coefficient.
Technical solution and embodiment and non-limiting cited by the utility model, with the skill cited by the utility model
Art scheme and embodiment are equal or effect same approach is all in the range of the utility model is protected.
Claims (4)
- A kind of 1. trap setting for gathering transplanter vibration signal, it is characterised in that：Including base（5）With cylindrical structure Housing（3）, base（5）Top is provided with one section of protrusion, housing（3）It is set on the outside of protrusion and is fixed on base（5）On, base （5）Bottom, which is provided with, to be used for base（5）The connector being fixed on transplanter（6）In order to base（5）With transplanter one Vibration is played, light spring is supported by protrusion（4）And light spring（4）Center line overlapped with raised center line, lightweight bullet Spring（4）Top braces have vibrating reed（7）And vibrating reed（7）Center line and light spring（4）Center line overlap, housing（3） Top is fixed with horn-like Amplitude amplification cylinder（2）, Amplitude amplification cylinder（2）Be relatively large in diameter one end and housing（3）Connection, and Housing（3）Inner wall and Amplitude amplification cylinder（2）The inner wall transmission in the same plane to avoid influence vibration signal of junction, Amplitude amplification cylinder（2）Miner diameter end on PVDF sensor units are installed（1）, base（5）With transplanting machine vibration and by light Matter spring（4）Vibration signal is passed into vibrating reed（7）, vibrating reed（7）Pass through housing（3）Internal air dielectric transmission and by Width amplifies cylinder（2）Collection passes to PVDF sensor units after collecting（1）, PVDF sensor units（1）By the vibration of transplanter Signal is converted to electric signal and exports.
- A kind of 2. trap setting for gathering transplanter vibration signal according to claim 1, it is characterised in that：The company Fitting（6）For magnetic coupling.
- A kind of 3. trap setting for gathering transplanter vibration signal according to claim 1, it is characterised in that：Described is convex It is cylindrical-shaped structure to rise, and raised outside diameter is equal to housing inner diameter, and raised and housing is directly connected to by way of thread fitting Together.
- A kind of 4. trap setting for gathering transplanter vibration signal according to claim 1, it is characterised in that：Described PVDF sensor units（1）Including PVDF thin film, noise filtering circuit, temperature-compensation circuit and signal output apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721242977.XU CN207248341U (en) | 2017-09-26 | 2017-09-26 | A kind of trap setting for gathering transplanter vibration signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721242977.XU CN207248341U (en) | 2017-09-26 | 2017-09-26 | A kind of trap setting for gathering transplanter vibration signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248341U true CN207248341U (en) | 2018-04-17 |
Family
ID=61887033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721242977.XU Expired - Fee Related CN207248341U (en) | 2017-09-26 | 2017-09-26 | A kind of trap setting for gathering transplanter vibration signal |
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| CN (1) | CN207248341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402063A (en) * | 2017-09-26 | 2017-11-28 | 河南科技大学 | A kind of method for the trap setting and its signal acquisition for gathering transplanter vibration signal |
| CN110907029A (en) * | 2019-11-18 | 2020-03-24 | 歌尔股份有限公司 | Calibration method of vibration sensing device |
-
2017
- 2017-09-26 CN CN201721242977.XU patent/CN207248341U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402063A (en) * | 2017-09-26 | 2017-11-28 | 河南科技大学 | A kind of method for the trap setting and its signal acquisition for gathering transplanter vibration signal |
| CN107402063B (en) * | 2017-09-26 | 2023-09-19 | 河南科技大学 | Capturing device for collecting vibration signals of transplanting machine and method for capturing signals of capturing device |
| CN110907029A (en) * | 2019-11-18 | 2020-03-24 | 歌尔股份有限公司 | Calibration method of vibration sensing device |
| CN110907029B (en) * | 2019-11-18 | 2022-04-15 | 潍坊歌尔微电子有限公司 | Calibration method of vibration sensing device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20180926 |
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| CF01 | Termination of patent right due to non-payment of annual fee |